Influential vs Notable vs Powerful vs Significant

When to use each in English, with meaning, register, and examples.

Influential

Top 2,000 (common)C1adjective

Notable

Top 2,000 (common)C1adjective

Powerful

Top 1,000 (very common)B1adjective

Significant

Top 1,000 (very common)B2adjective
 InfluentialNotablePowerfulSignificant
Pronunciation🇬🇧 /["/ˌɪnfluˈenʃl/"]/🇺🇸 /["/ˌɪnfluˈenʃl/"]/🇬🇧 /["/ˈnəʊtəbl/"]/🇺🇸 /["/ˈnəʊtəbl/"]/🇬🇧 /["/ˈpaʊəfl/"]/🇺🇸 /["/ˈpaʊərfl/"]/🇬🇧 /["/sɪɡˈnɪfɪkənt/"]/🇺🇸 /["/sɪɡˈnɪfɪkənt/"]/
MeaningHaving a lot of power to change things.Something important or worth remembering.Very strong or effective.Important or meaning a lot.
Examplea highly influential booka **notable success/achievement/example**The new engine is incredibly powerful and can reach high speeds in seconds.The research showed a significant improvement in patient outcomes.
RegisterNeutralNeutralNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)Top 1,000 (very common)Top 1,000 (very common)
CEFR levelC1C1B1B2
Part of speechadjectiveadjectiveadjectiveadjective
Collocationsbe, prove, become, extremely, fairly, very, inbe, especially, particularly, forbe, feel, look, extremely, fairly, very, be, feel, look, extremely, fairly, very, be, feel, look, extremely, fairly, very, be, feel, look, extremely, fairly, verybe, prove, become, extremely, fairly, very, for, to
Antonymsinsignificant, unimportant, powerlessinsignificant, trivial, unremarkableweak, ineffective, powerlessinsignificant, trivial, minor
Common mistakes'Influential' is often confused with 'influent', which has a different meaning., Learners might forget to specify what is being influenced., Misplacement of 'influential' in a sentence, as in using it before the noun instead of after.Confusing 'notable' with 'noteworthy' - they are similar but have different nuances., Using 'notable' as a verb instead of an adjective., Misplacing the adjective in a sentence, leading to awkward phrasing.Using 'powerful' incorrectly with uncountable nouns, e.g., 'powerful information' instead of 'valuable information'., Confusing it with 'power', which is a noun., Overusing 'powerful' in casual contexts instead of simpler terms.Confusing 'significant' with 'significance'., Using 'significant' as a noun instead of an adjective., Overusing 'significant' in casual speaking.
Usage notesUse 'influential' to describe people or things that have a strong effect on others. It's suitable in both formal and informal contexts, but avoid using it in casual conversations unless discussing someone important.Use 'notable' to emphasize importance or distinction, particularly in academic or formal contexts. It may not fit casual conversations where simpler words like 'important' may be more suitable.Use 'powerful' for both physical strength and the effectiveness of ideas, emotions, or objects. Avoid in overly casual contexts where simpler words like 'strong' may fit better.Used in academic and formal contexts to indicate importance. Avoid in very casual conversations; instead, use simpler words like 'big' or 'important'.

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Powerful
Significant

Frequently asked questions: Influential vs Notable vs Powerful vs Significant

What's the difference between Influential, Notable, Powerful, and Significant?

Influential: Having a lot of power to change things. Notable: Something important or worth remembering. Powerful: Very strong or effective. Significant: Important or meaning a lot.

Are Influential, Notable, Powerful, and Significant the same CEFR level?

Influential: C1, Notable: C1, Powerful: B1, Significant: B2 on the CEFR scale.

What part of speech are Influential, Notable, Powerful, and Significant?

Influential: adjective, Notable: adjective, Powerful: adjective, Significant: adjective.

Can you show an example of each?

Influential: a highly influential book Notable: a **notable success/achievement/example** Powerful: The new engine is incredibly powerful and can reach high speeds in seconds. Significant: The research showed a significant improvement in patient outcomes.

Can I use Influential, Notable, Powerful, and Significant interchangeably?

Not always. Influential, Notable, Powerful, and Significant are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.